Mitt Romney won the Texas Republican primary last night, clinching the GOP's nomination for president. In response, Fox News has engaged its function as the Republican Party's communications arm and mounted an all-out push to promote Romney and attack President Obama.

This morning, Fox & Friends aired a four-minute anti-Obama attack ad. Not from any campaign or super PAC, but from Fox itself -- the video opens with the text "Fox & Friends Presents":

Later, America's Newsroom, which is one of Fox's "straight news" shows, aired a portion of host Bill Hemmer's softball interview with Mitt and Ann Romney in San Diego. Hemmer said of the interview, "If you're looking for policy, that's really not the intention for why we went to California. This is really trying to get to know this man, because he's going to be in your living rooms now for at least the next six months and possibly a lot longer after that."

Hemmer's co-host, Martha MacCallum, then suggested that the purpose of the interview had been to increase Romney's poll numbers.

MacCALLUM: And you look at the likability numbers, which he's had a tough time with, to a certain extent, this gives people a window to sort of decide what they think for themselves based on a little bit more understanding of who he is, and it's fascinating. So we're looking forward to the next part.

This is not how real news outlets approach the coverage of a presidential election.

The New York Times was forced to issue two corrections after relying on Capitol Hill anonymous sourcing for its flawed report on emails from former Secretary of State and Democratic presidential candidate Hillary Clinton. The Clinton debacle is the latest example of why the media should be careful when relying on leaks from partisan congressional sources -- this is far from the first time journalists who did have been burned.

Several Fox News figures are attempting to shift partial blame onto Samuel DuBose for his own death at the hands of a Cincinnati police officer during a traffic stop, arguing DuBose should have cooperated with the officer's instructions if he wanted to avoid "danger."

Iowa radio host Steve Deace is frequently interviewed as a political analyst by mainstream media outlets like NPR, MSNBC, and The Hill when they need an insider's perspective on the GOP primary and Iowa political landscape. However, these outlets may not all be aware that Deace gained his insider status in conservative circles by broadcasting full-throated endorsements of extreme right-wing positions on his radio show and writing online columns filled with intolerant views that he never reveals during main stream media appearances.